Removal of phosphate from municipal wastewater with fly ash from wood industry

Majdandžić, Anamari (2013) Removal of phosphate from municipal wastewater with fly ash from wood industry. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

This study examined the effect of the fly ash from the wood industry in the removal of phosphate and its effect on bacteria in the secondary effluent from the biological treatment of wastewater. The addition of three different samples of fly ash (H, L, C) at a concentration of 10 g L-1 in the effluent resulted in the removal of 95,3±1,3% phosphorus, a large increase in pH (sample H 8,91±0,31, sample L 11,25±0,55 and sample C 12,69±0,16) and survival rate of the bacterial population of the sample L and C which was 0%. The addition of 1 g L-1 ash effluent resulted in the removal of phosphorus sample H 31,0 ± 0,1% , sample L 57,9± 0,1% and sample C 72,4±0,3%, a smaller increase in pH values compared to previous results in the amount of sample H 8,67±0,14, sample L 8,91±0,09 and sample C 9,8±0,25. The survival rate of the bacterial population of the three samples was 93,95±7,27%. The conclusion is that, the fly ash is potentially very effective adsorbent for removing phosphate from wastewater and the appropriate dosage will have no effect on the environment.

Item Type: Thesis (Diploma thesis)
Keywords: bacteria, phosphate, adsorption, wastewater
Supervisor: Hrenović, Jasna
Co-supervisor: Ivanković, Tomislav
Date: 2013
Number of Pages: 64
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 29 Sep 2014 10:27
Last Modified: 29 Sep 2014 10:27
URI: http://digre.pmf.unizg.hr/id/eprint/2855

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